Investigating Water Use in Your Home
Iron Minerals on the Moon
This easy exercise models one of the processes currently being researched at four U.S. universities to enable recovery of iron and other materials found on the Moon to construct an inhabited workstation. Research is being done to perfect magnetic separation techniques to recover iron-bearing minerals from the lunar soil.
It's About Time
It’s the “Rain,” Man
People find inspiration in many different places and things. Among them is taking joy in sensing the Earth around you. Feel the breeze on your face. Take in the fresh smell of the air after a spring rain. Use your hands to build something. Wherever you live you can get outside, savor your surroundings and observe what makes up the rhythms of the place you live.
Know Your Energy Costs
Land and People: Finding a Balance
Latitude and Longitude
You may have seen or used Global Positioning System (GPS) devices in cars or on camping trips. These devices use data from satellites orbiting the Earth to locate places on our planet. GPS devices describe the locations to us in the form of latitude and longitude coordinates.
Leaf It to Me
In the water cycle, there are two ways water moves from the ground to the atmosphere: evaporation and transpiration. During evaporation, water changes from a liquid to a gas state. Transpiration is basically evaporation of water from plant leaves. Transpiration accounts for about 10 percent of the moisture in the atmosphere — with oceans, seas, and other bodies of water providing nearly all the rest.
When it comes to slipping, sliding, and stability in soils, the key word is “liquefaction.”
During an event like an earthquake, liquefaction is the process by which saturated soil behaves like a liquid. This can be problematic, as a liquid soil loses structure and can cause buildings to sink, foundations to crack, and soil to slide down slopes all at once.
How does the type of soil affect how much a house will sink or shift during an earthquake? Conduct an experiment to test your ideas!